The Himalayan Valley Nepal Kept Secret for Centuries — Sealed by Two Mountains, Opened by One Man in 1956

For centuries, the only way into this valley was rumour. No foreigner had a map of it, a name for it, or a photograph of it — because, as far as anyone outside a handful of Gurung villages in central Nepal knew, no foreigner had ever stood inside it. It took until 1956 for that to change, and even then, the man who finally got in nearly didn't find the door.

Local Gurung communities had known of the valley long before any European did, and had their own reasons for keeping it closed. It was held sacred as a repository of treasure left by the Nagas, serpent-deities of local belief, and Machapuchare — the fishtail-shaped peak that forms one wall of the amphitheatre — is considered the dwelling place of the Hindu god Shiva; the long plumes of snow that blow off its summit ridge were traditionally read as the smoke of his divine incense. Entry was restricted: meat and eggs were forbidden inside, and for generations women and members of lower castes were barred outright.

Roberts wasn't trying to find a lost valley — he was reconnoitring Machapuchare for a climbing attempt the following year. According to the American Alpine Journal's own account of the expedition, his route from Chomrong village followed the Modi Khola gorge for three days, described at the time as 'most of the way by dismal bamboo slogging' — hacking through dense jungle along a river gorge so narrow that, for most of human history, nobody outside the valley had bothered to check what lay beyond it. When Roberts and his companions finally emerged, they found themselves standing inside a natural amphitheatre completely walled in by some of the highest mountains on Earth. He named it, simply, the Sanctuary — the title stuck, and it is the name still used on every map of the region today.

Roberts came back the following spring, in 1957, and got close enough to Machapuchare's summit that his team could have finished the climb — then turned around, deliberately, to respect the mountain's sacred status. No one has completed a verified summit of Machapuchare since. It remains, by the region's own tradition and by longstanding government policy, a peak nobody is meant to stand on top of.

What this means for trekkers

It's a reminder of how recently — and how narrowly — this part of the Himalaya opened up. Compare it with how we cover the neighbouring approach in our Everest Base Camp vs Annapurna Base Camp breakdown, or read more on permits before you go at our Nepal permits hub.

Source: American Alpine Journal; additional detail from Wikipedia's Annapurna Sanctuary entry, cross-checked against the AAJ account.

Cover photo: Santanu Deb via Pexels (Pexels License).